body{
    background-image: linear-gradient(to top, #9890e3 0%, #b1f4cf 100%);
}
.lg_bg{
    width: 500px;
    height: 500px;
    border: 5px solid #EEEEEE;
    background-color: white;
    /*让div水平居中*/
    margin: auto;
    margin-top: 15px;
}
.lg_center{
    float: left;
    width: 500px;
    margin: 15px;
}
.lg_right{
    float: right;
    margin: 15px;
}
.lg_right > p:first-child{
    font-size: 15px;
}
.lg_right p a {
    color: cornflowerblue;
}
.td_left{
    width: 100px;
    text-align: left;
    height: 45px;
}
.td_mid{
    width:50px;
}
#name,#password{
    width: 251px;
    height: 32px;
    border: 1px solid cornflowerblue;
    /*设置边框圆角*/
    border-radius: 5px;
    padding-left: 10px ;
}
.btn_sub {
    width: 80px;
    height: 40px;
    align-content: center;
    background-color: cornflowerblue;
    border: 1px solid cornflowerblue;
    border-radius: 5px;
}
.btn_sub:hover{
    filter: brightness(1.1);
}